> divers are trained to breath out during an emergency swimming ascent
To add a little more detail to this. You should ascend as slow as you can given the emergency situation but gently hum out your air rather than breath out. This slows it so you avoid the panic of empty lungs when not near the surface and also allows air to escape if it’s expanding quicker than you are humming :)
To add a little more detail to this. You should ascend as slow as you can given the emergency situation but gently hum out your air rather than breath out. This slows it so you avoid the panic of empty lungs when not near the surface and also allows air to escape if it’s expanding quicker than you are humming :)